the acid torted, the greater the % hydrolysis. (weaker,stronger) 4. HYDROLYSIS O
ID: 577194 • Letter: T
Question
the acid torted, the greater the % hydrolysis. (weaker,stronger) 4. HYDROLYSIS OF AMMONIUM SALTS The salt with the strenrest odor of ammonia is NHyCI Write the hydrolysis equation for the a) Cation undergoing hydrolysis b) Anion undergoing hydrolysis The salt with the next strongest odor is Write the hydrolysis equation for the: a) Cation undergoing hydrolysis b) Anion undergoing hydrolysis The salt with the least oder of ammonia is The one ion undergoing hydrolysis is Write the hydrolysis equation for that ion Which of the above salts will hydrolyze the least Why? Compare the extent of hydrolysis of NH,C,H,0, and (NHshCO, by comparing values of C,H,02, and CO32-and their theoretical % hydrolysis. the K , theoretical %hydrolysis on page 7Explanation / Answer
Hydrolysis is an equilibrium reaction between a cation or anion of a weak acid or weak base in a salt with water.
1. NH4(CO3)2 ; salt from weak acid H2CO3 amd weak base Ammonia
a. NH4+
b.( CO3)2-
2.NH4(CH3COO); salt from weak acid acetic acid and weak base Ammonia
a. NH4+
b. CH3COO -
3.NH4Cl; salt from strong acid HCl and weak base Ammonia
a. NH4+
b. Cl - don't undergo hydrolysis as its from a strong acid HCl
c. NH4+ + H2O ---------> NH3. + H3O+
4. NH4Cl hydrolysed least because only NH4+ ion of the salt get hydrolysed. But in other 2 salts both cations and anions get hydrolysed.
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